MX2021002084A - Encoding device, decoding device, encoding method, and decoding method. - Google Patents

Encoding device, decoding device, encoding method, and decoding method.

Info

Publication number
MX2021002084A
MX2021002084A MX2021002084A MX2021002084A MX2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A
Authority
MX
Mexico
Prior art keywords
motion vector
encoding
decoding
difference
deriving
Prior art date
Application number
MX2021002084A
Other languages
Spanish (es)
Inventor
Chong Soon Lim
hai wei Sun
Tadamasa Toma
Takahiro Nishi
Kiyofumi Abe
Han Boon Teo
jing ya Li
Ru Ling Liao
Original Assignee
Panasonic Ip Corp America
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Ip Corp America filed Critical Panasonic Ip Corp America
Publication of MX2021002084A publication Critical patent/MX2021002084A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/527—Global motion vector estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Error Detection And Correction (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

An encoding device (100) is provided with a circuit (a1) and a memory (a2) connected to the circuit (a1), the circuit (a1), in operation, deriving a reference motion vector used in predicting a block to be processed, deriving a first motion vector different from the reference motion vector, deriving a difference motion vector on the basis of a difference between the reference motion vector and the first motion vector, determining whether or not the difference motion vector is larger than a threshold, changing the first motion vector when it is determined that the difference motion vector is larger than the threshold, and when it is determined that the difference motion vector is not larger than the threshold, leaving the first motion vector unchanged and encoding the block to be processed using the first motion vector after change or the first motion vector that is not changed.
MX2021002084A 2018-08-27 2019-08-09 Encoding device, decoding device, encoding method, and decoding method. MX2021002084A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862723302P 2018-08-27 2018-08-27
PCT/JP2019/031584 WO2020045050A1 (en) 2018-08-27 2019-08-09 Encoding device, decoding device, encoding method, and decoding method

Publications (1)

Publication Number Publication Date
MX2021002084A true MX2021002084A (en) 2021-04-28

Family

ID=69644991

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021002084A MX2021002084A (en) 2018-08-27 2019-08-09 Encoding device, decoding device, encoding method, and decoding method.

Country Status (8)

Country Link
US (3) US11212549B2 (en)
JP (2) JP7461885B2 (en)
KR (1) KR20210046679A (en)
CN (1) CN112640465A (en)
BR (1) BR112021001245A2 (en)
MX (1) MX2021002084A (en)
TW (2) TWI831724B (en)
WO (1) WO2020045050A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102658887B1 (en) * 2018-10-10 2024-04-18 삼성전자주식회사 Method for encoding and decoding video by using motion vector differential value, and apparatus for encoding and decoding motion information
CN113170179A (en) * 2018-12-21 2021-07-23 松下电器（美国）知识产权公司 Encoding device, decoding device, encoding method, and decoding method
CN114073090A (en) * 2019-07-01 2022-02-18 交互数字Vc控股法国公司 Affine motion compensated bi-directional optical flow refinement

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JP2914448B2 (en) * 1997-06-25 1999-06-28 日本電信電話株式会社 Motion vector prediction encoding method and motion vector decoding method, prediction encoding device and decoding device, and recording medium recording motion vector prediction encoding program and decoding program
JP2000209594A (en) * 1999-01-18 2000-07-28 Mitsubishi Electric Corp Image encoder
JP2002325258A (en) * 2001-04-25 2002-11-08 Nec Corp Image coding apparatus and image coding method for use in same
CN1264356C (en) * 2001-11-29 2006-07-12 松下电器产业株式会社 Coding distortion removal method, video encoding method, video decoding method, apparatus and programme
KR100763917B1 (en) * 2006-06-21 2007-10-05 삼성전자주식회사 The method and apparatus for fast motion estimation
CN102474647B (en) * 2010-05-25 2015-08-19 松下电器（美国）知识产权公司 Picture coding device, method for encoding images and integrated circuit
JP5798467B2 (en) * 2011-12-07 2015-10-21 ルネサスエレクトロニクス株式会社 Coding type determination device, moving image coding device, coding type determination method, moving image coding method, and program
CN103348678B (en) 2012-02-07 2017-06-27 松下知识产权经营株式会社 Image processing apparatus and image processing method
CN102630011A (en) * 2012-03-31 2012-08-08 浙江师范大学 Compressive perceptual coding and decoding method and system in video sensor network
EP2814253B1 (en) 2013-06-05 2015-09-16 Axis AB Method for encoding digital video data
JP6191296B2 (en) * 2013-07-16 2017-09-06 富士通株式会社 Moving image processing apparatus, moving image processing method, and program
WO2016008157A1 (en) * 2014-07-18 2016-01-21 Mediatek Singapore Pte. Ltd. Methods for motion compensation using high order motion model
CN109005407B (en) * 2015-05-15 2023-09-01 华为技术有限公司 Video image encoding and decoding method, encoding device and decoding device
US10390033B2 (en) * 2016-06-06 2019-08-20 Google Llc Adaptive overlapped block prediction in variable block size video coding
WO2018230493A1 (en) 2017-06-14 2018-12-20 シャープ株式会社 Video decoding device, video encoding device, prediction image generation device and motion vector derivation device
KR20200133327A (en) * 2018-04-12 2020-11-27 삼성전자주식회사 Coding method and device, decoding method and device

Also Published As

Publication number Publication date
JP2023060057A (en) 2023-04-27
TW202402060A (en) 2024-01-01
TWI831724B (en) 2024-02-01
CN112640465A (en) 2021-04-09
US11212549B2 (en) 2021-12-28
US20210105500A1 (en) 2021-04-08
KR20210046679A (en) 2021-04-28
US20220078472A1 (en) 2022-03-10
US11785243B2 (en) 2023-10-10
TW202025766A (en) 2020-07-01
JPWO2020045050A1 (en) 2021-08-10
WO2020045050A1 (en) 2020-03-05
US20230412832A1 (en) 2023-12-21
TWI813740B (en) 2023-09-01
JP7461885B2 (en) 2024-04-04
BR112021001245A2 (en) 2021-04-27

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